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Find Radon gas abatement pros in Corvallis

Avatar for John's Waterproofing Co.

John's Waterproofing Co.

201 Airport Road
4.74(
47
)
Approved Pro

John's Waterproofing Co.

201 Airport Road
4.74(
47
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
237 local quotes requested

John's Waterproofing Co. is the premier waterproofing company serving in Oregon and southern Washington for almost 4 decades. We Specialize in Basement and Crawlspace Waterproofing and Repairs, we offer free inspections and estimates along with caring customer service. Contact our office today for your waterproofing needs!

"No."

Tracy W on January 2025

John's Waterproofing Co. is the premier waterproofing company serving in Oregon and southern Washington for almost 4 decades. We Specialize in Basement and Crawlspace Waterproofing and Repairs, we offer free inspections and estimates along with caring customer service. Contact our office today for your waterproofing needs!

"No."

Tracy W on January 2025


Avatar for Alpha Environmental Services Inc

Alpha Environmental Services Inc

11080 SW Allen Blvd
4.72(
109
)
Approved Pro

Alpha Environmental Services Inc

11080 SW Allen Blvd
4.72(
109
)
Approved Pro
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
68 local quotes requested

We are a residential and commercial environmental consulting and remediation company. Serving the greater Portland, OR, area for over 20 years, we have the experience and knowledge to handle just about anything. We offer a variety of services from mold assessment and remediation to radon testing and mitigation and tank services. We provide project oversight and technical review for projects big and small. This includes site analysis, mold assessment, and the remediation of toxins. We also offer a full range of heating oil tank services, from checking underground leaks to installing above ground storage tanks (ASTs). Our residential and commercial services include: • Environmental consulting and remediation • Environmental site assessment • Groundwater remediation • Habitat restoration • Mold testing and removal • Asbestos, radon and lead testing and inspection • Dry well sampling • Phase I & II environmental site assessments • Underground tank sampling • Vapor mitigation systems Environmental risk is an important and complex issue. Whether your concern is toxic mold or radon testing, Alpha Environmental Services can develop an environmental or engineering due-diligence solution that fits your individual needs. We are fully licensed and committed to your environmental needs. Call today for a free estimate and to schedule an appointment.

"I hired Alpha Environmental to do a tank search. They were punctual and helpful, beyond the scope of their visit. They're easy to work with and they accommodated unusual invoicing request."

Ramona M on June 2025

We are a residential and commercial environmental consulting and remediation company. Serving the greater Portland, OR, area for over 20 years, we have the experience and knowledge to handle just about anything. We offer a variety of services from mold assessment and remediation to radon testing and mitigation and tank services. We provide project oversight and technical review for projects big and small. This includes site analysis, mold assessment, and the remediation of toxins. We also offer a full range of heating oil tank services, from checking underground leaks to installing above ground storage tanks (ASTs). Our residential and commercial services include: • Environmental consulting and remediation • Environmental site assessment • Groundwater remediation • Habitat restoration • Mold testing and removal • Asbestos, radon and lead testing and inspection • Dry well sampling • Phase I & II environmental site assessments • Underground tank sampling • Vapor mitigation systems Environmental risk is an important and complex issue. Whether your concern is toxic mold or radon testing, Alpha Environmental Services can develop an environmental or engineering due-diligence solution that fits your individual needs. We are fully licensed and committed to your environmental needs. Call today for a free estimate and to schedule an appointment.

"I hired Alpha Environmental to do a tank search. They were punctual and helpful, beyond the scope of their visit. They're easy to work with and they accommodated unusual invoicing request."

Ramona M on June 2025


Kelsay Environmental Building Consulting

Located At
New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Kelsay Environmental Building Consulting

Located At
New on HomeAdvisorNew on HomeAdvisor
Approved Pro
150 local quotes requested
13 years of experience

Welcome to Kelsay Environmental Building Consulting! We look forward to serving you!

Welcome to Kelsay Environmental Building Consulting! We look forward to serving you!


C J Hansen Co Inc

3552 Silverton Road NE
4.42(
12
)

C J Hansen Co Inc

3552 Silverton Road NE
4.42(
12
)
Customers say: Quick response
77 years of experience

Financing available. See website for additional service areas. Locally owned.

"When scheduling service for an air-to-water boiler, I was told I called "exactly the right people". The tech got here and said they almost never see these... Charged over $300 for an hour's looking around (no actual service) and drive time. So, I feel pretty seriously misled, and I still have to find someone to service the boiler. They continue to be unwilling to split the bill."

Andy A on April 2023

Financing available. See website for additional service areas. Locally owned.

"When scheduling service for an air-to-water boiler, I was told I called "exactly the right people". The tech got here and said they almost never see these... Charged over $300 for an hour's looking around (no actual service) and drive time. So, I feel pretty seriously misled, and I still have to find someone to service the boiler. They continue to be unwilling to split the bill."

Andy A on April 2023


Avatar for Northwest Hazmat

Northwest Hazmat

36 West Q Street
4.83(
6
)

Northwest Hazmat

36 West Q Street
4.83(
6
)
Customers say: Terrific value
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

"No Mold" is a division of NorthWest Hazmat, a trusted locally owned and operated company founded in 2000. We specialize in identification and remediation of all kinds of mold, and will work with you, to provide the most cost effective solution to keep your family safe. We work with insurance claims when possible, to ensure you can stay healthy & happy & pride ourselves on being fast, fair and professional. We want our customers to be 100% satisfied with our service.

"No Mold" is a division of NorthWest Hazmat, a trusted locally owned and operated company founded in 2000. We specialize in identification and remediation of all kinds of mold, and will work with you, to provide the most cost effective solution to keep your family safe. We work with insurance claims when possible, to ensure you can stay healthy & happy & pride ourselves on being fast, fair and professional. We want our customers to be 100% satisfied with our service.


Cascade Radon Inc

12839 NE Airport Way
4.94(
157
)

Cascade Radon Inc

12839 NE Airport Way
4.94(
157
)
Customers say: Super punctual
Recommended by 99% of Angi customers
Recommended by 99% of HomeAdvisor customers

The Northwest's most experienced firm. Residential and commercial radon testing, mitigation, and system design for homes, schools, businesses. Radon-resistant design for new homes. We have been EPA-certified for over 25 years. Award winning. Radon is not a secondary endeavor for us… it’s all we do.

"Excellent from beginning to end. Very professional outfit from initial visit, quote, scheduling, work, followup. Price was reasonable, work quality went above and beyond, and radon levels dropped well below even the contractual level."

Claude S on April 2021

The Northwest's most experienced firm. Residential and commercial radon testing, mitigation, and system design for homes, schools, businesses. Radon-resistant design for new homes. We have been EPA-certified for over 25 years. Award winning. Radon is not a secondary endeavor for us… it’s all we do.

"Excellent from beginning to end. Very professional outfit from initial visit, quote, scheduling, work, followup. Price was reasonable, work quality went above and beyond, and radon levels dropped well below even the contractual level."

Claude S on April 2021


Moldlab

2501 Mayes Road
4.74(
352
)

Moldlab

2501 Mayes Road
4.74(
352
)
Customers say: True professional
25 years of experience

Mold identification, mold test kits and testing supplies. If you suspect you have a mold problem give us a call toll free and we can walk you through your testing options.

"The self-test product was as expected. The reports require additional research to interpret and understand, so seemed more targeted at professionals."

Jessica H on February 2018

Mold identification, mold test kits and testing supplies. If you suspect you have a mold problem give us a call toll free and we can walk you through your testing options.

"The self-test product was as expected. The reports require additional research to interpret and understand, so seemed more targeted at professionals."

Jessica H on February 2018


Global Plasma Solutions

10 Mall Terrace
5.00(
1
)

Global Plasma Solutions

10 Mall Terrace
5.00(
1
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Global Plasma Solutions is a manufacturing company that sells air purification systems primarily into the commercial and residential markets. Home owners can benenfit from our systems as they are easily adapted to any HVAC system. Go to www.gpshvac.com to find a certified contractor near you to have one installed within your home.

Global Plasma Solutions is a manufacturing company that sells air purification systems primarily into the commercial and residential markets. Home owners can benenfit from our systems as they are easily adapted to any HVAC system. Go to www.gpshvac.com to find a certified contractor near you to have one installed within your home.


Pacific Northwest Builders

90 Rankin Road
No reviews yet

Pacific Northwest Builders

90 Rankin Road
No reviews yet
47 years of experience

Pacific Northwest Builders (PNB) is a General Contractor specializing in the construction custom residential and commercial structures/ facilities. Additionally, PNB is licensed with the State of Washington with federal certification in conducting AHERA building inspections for asbestos, Lead (Pb) Assessments for HUD commercial and residential projects, "Mold" remediation/ abatement, and Hazardous Material cleanup and remediation/ demolition projects. In addition to its construction services, PNB offers Hazardous Materials Management – Limited Good Faith Surveys, Abatement Design, Development of Bid Specifications, Hazardous Materials Management, Hazardous Materials Building Inspection, Third Party Air Monitoring, Lead/Asbestos Clearance, Closeout Documentation, AHERA Triennial Inspections, O&M Plans, Asbestos Awareness Training, Management Plans. Environmental Consulting – Phase I and II Environmental Site Assessments; Site Investigation and Characterization; Groundwater Monitoring; UST Closure; Removal Actions; AAI Rule and Due Diligence; Subsurface Exploration; Site Remediation; Voluntary Cleanup Program Management; Regulatory Liaison; Hazardous, Toxic, and Radioactive Waste (HTRW); FUDS-DERP Experience; EECA and RI/FS; Environmental Compliance; NEPA/SEPA. Industrial Hygiene Services – Indoor Air Quality (IAQ) Assessments, Air Sampling/Monitoring, Mold/Bacteriological Surveys and Remediation, IEQ testing for LEED Certification, Custom Training Programs, Health/Safety Hazard Assessments, Site-Specific Health and Safety Plans, Moisture Intrusion Investigations, Third Party Monitoring, Workers’ Exposure, Industrial Hygiene Work Plans. Construction Administration – Construction Management, Project Management, Plans and Specifications, Bid Process Support, Cost Estimating, Budget and Schedule Control, Contract Negotiations, Mediation and Dispute Arbitration, Abatement Design and Management, Permitting, Constructability Review, Value Safety Engineering services through its coalition of Certified Safety Professionals (CSP) and Certified Industrial Hygienists (CIH). PNB specializes in hard surface fabrication (Corian, stone, and ceramic tile) installations for commercial and residential applications; custom cabinets; kitchen and bath renovations, and custom RV interiors. PNB is a customer oriented company. On acceptance of a PNB bid, PNB requires a 50% good faith payment prior to project commencement, with the project balance (second 50%/ ½ ) due on the completion of the project. Long duration projects (over 30 days) requires a 50% good faith payment prior to project commencement, with 25%/ ¼ payment due at seventy-five percent completion and the remainder 25%/ ¼ due on project completion and acceptance.

Pacific Northwest Builders (PNB) is a General Contractor specializing in the construction custom residential and commercial structures/ facilities. Additionally, PNB is licensed with the State of Washington with federal certification in conducting AHERA building inspections for asbestos, Lead (Pb) Assessments for HUD commercial and residential projects, "Mold" remediation/ abatement, and Hazardous Material cleanup and remediation/ demolition projects. In addition to its construction services, PNB offers Hazardous Materials Management – Limited Good Faith Surveys, Abatement Design, Development of Bid Specifications, Hazardous Materials Management, Hazardous Materials Building Inspection, Third Party Air Monitoring, Lead/Asbestos Clearance, Closeout Documentation, AHERA Triennial Inspections, O&M Plans, Asbestos Awareness Training, Management Plans. Environmental Consulting – Phase I and II Environmental Site Assessments; Site Investigation and Characterization; Groundwater Monitoring; UST Closure; Removal Actions; AAI Rule and Due Diligence; Subsurface Exploration; Site Remediation; Voluntary Cleanup Program Management; Regulatory Liaison; Hazardous, Toxic, and Radioactive Waste (HTRW); FUDS-DERP Experience; EECA and RI/FS; Environmental Compliance; NEPA/SEPA. Industrial Hygiene Services – Indoor Air Quality (IAQ) Assessments, Air Sampling/Monitoring, Mold/Bacteriological Surveys and Remediation, IEQ testing for LEED Certification, Custom Training Programs, Health/Safety Hazard Assessments, Site-Specific Health and Safety Plans, Moisture Intrusion Investigations, Third Party Monitoring, Workers’ Exposure, Industrial Hygiene Work Plans. Construction Administration – Construction Management, Project Management, Plans and Specifications, Bid Process Support, Cost Estimating, Budget and Schedule Control, Contract Negotiations, Mediation and Dispute Arbitration, Abatement Design and Management, Permitting, Constructability Review, Value Safety Engineering services through its coalition of Certified Safety Professionals (CSP) and Certified Industrial Hygienists (CIH). PNB specializes in hard surface fabrication (Corian, stone, and ceramic tile) installations for commercial and residential applications; custom cabinets; kitchen and bath renovations, and custom RV interiors. PNB is a customer oriented company. On acceptance of a PNB bid, PNB requires a 50% good faith payment prior to project commencement, with the project balance (second 50%/ ½ ) due on the completion of the project. Long duration projects (over 30 days) requires a 50% good faith payment prior to project commencement, with 25%/ ¼ payment due at seventy-five percent completion and the remainder 25%/ ¼ due on project completion and acceptance.


Budget Rooter Plumbing Service

2050 Vista Ave SE
4.88(
24
)

Budget Rooter Plumbing Service

2050 Vista Ave SE
4.88(
24
)
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers

When you call Budget Rooter Plumbing Service you will talk to a live person 24 hours a day. We respect you and your property by having carpets to put down on the floor to stop damage, we clean up after ourselves like we weren't even there. You receive a free & quick plumbing inspection with every job. A more complete inspection upon request. When you call us, a license journeyman plumber will show up on time to do all the work from drain cleaning to a remodel. Additional contact name Angela Deno - Additional email - angela@budgetrooter.com. Additional address - P.O. Box 1152 Aumsville, Oregon 97325.

"work went as requested"

Cora L C on October 2018

When you call Budget Rooter Plumbing Service you will talk to a live person 24 hours a day. We respect you and your property by having carpets to put down on the floor to stop damage, we clean up after ourselves like we weren't even there. You receive a free & quick plumbing inspection with every job. A more complete inspection upon request. When you call us, a license journeyman plumber will show up on time to do all the work from drain cleaning to a remodel. Additional contact name Angela Deno - Additional email - angela@budgetrooter.com. Additional address - P.O. Box 1152 Aumsville, Oregon 97325.

"work went as requested"

Cora L C on October 2018

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FAQs for radon gas abatement projects in Corvallis, OR

The only way to know whether your home or water supply contains radon is to schedule a professional test. A qualified radon inspector will collect samples, deliver lab-verified results, and explain the findings for $150 to $800. Once you know your exact levels, you and your radon mitigation pro can choose the right system and tackle the problem before it affects your family’s health.

Both roles tackle radon, but they focus on different steps. Inspectors test your home, interpret the results, and determine whether levels exceed EPA guidelines. Mitigation pros design and install the system that lowers those levels. Some companies do both, but the skills and equipment differ, so always verify that the person you hire is properly certified for the specific service you need.

Installing a mitigation unit fixes radon problems by reducing indoor gas levels to established safe standards. A system designed and installed by a mitigation expert, tailored to your home's specific layout and foundation, guarantees effective radon reduction. This expert installation ensures consistent performance over time while safeguarding your indoor air quality.

Open windows and doors do not reduce radon levels because they trigger a pressure imbalance that draws radon-laden air into your home. This practice fails to control radon concentration and can even worsen the issue. An active suction mitigation system provides a proven, safe, and effective solution to reliably reduce radon levels.

Radon mitigation systems generally last between 10 and 30 years, depending on system type and maintenance. Passive systems endure the longest because they have no moving parts, whereas active systems, which use a fan, require fan replacement every 5 to 10 years. System components, such as PVC pipes, seals, and fittings, can remain effective for decades when paired with periodic inspections and proper maintenance.

Radon mitigation systems consume between 300 and 3,000 kWh of electricity per year, depending on fan size and system design. On average, an active radon fan draws 100 to 300 watts continuously, which translates to roughly 876 kWh annually, and adds $30 to $300 to your energy bill each year. Choosing a high-efficiency fan and ensuring tight sealing around pipes helps minimize these ongoing costs.

The Corvallis, OR homeowners’ guide to radon gas abatements

From average costs to expert advice, get all the answers you need to get your job done.